from flask import Flask, render_template
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager
from flask_moment import Moment
from config import config

db = SQLAlchemy()
moment = Moment()

login_manager = LoginManager()
login_manager.session_protection = 'strong'
login_manager.login_view = 'auth.login'


def create_app(config_name):
    app = Flask(__name__)
    app.config.from_object(config[config_name])
    config[config_name].init_app(app)

    db.init_app(app)
    moment.init_app(app)
    login_manager.init_app(app)

    # 附加路由和自定义的错误页面
    from .main import main as main_blueprint
    app.register_blueprint(main_blueprint)

    from .auth import auth as auth_blueprint
    app.register_blueprint(auth_blueprint)

    from .social import social as social_blueprint
    app.register_blueprint(social_blueprint)

    from .account import account as account_blueprint
    app.register_blueprint(account_blueprint)

    return app
